Online education for gem enthusiasts

  • 5,879 members
  • 2,122 articles
  • 108 gemology businesses
  • 123,517 Facebook fans

Become a Member

“IGS is a Godsend for me!”
– Charlie Bernheiser, IGS Member

“Thank you for the fantastic adventure!”
– John Parrot, IGS Member

Ways to get your gem fix for free






Directory Listings


Facebook fans

IGS Pro Membership

Take your gemology career to the next level

  • Certification Course
  • A listing in our business directory
  • Access to our up-to-date gemstone value guide
  • Access to premium articles on tools and techniques

Sign up for a Pro Membership

“Becoming a Pro Member of IGS just made good sense for my business. The gemology resources are fantastic, and my profile lets potential customers know I am serious about colored gemstones. And frankly, if I get any exposure to potential customers it’s a no-brainer.”
Paul Bierker, Paul Michael Designs
Jeweler, IGS Pro Member

Gem Price Guide

The world’s best online resource for gemstone appraisal

Over 15 years, we have assembled detailed pricing and value information for appraising over 70 different gemstones. The values in our guide come from a variety of sources including primary and secondary gemstone dealers, jewelers, miners, and wholesale suppliers of commonly traded gemstones.

View the Price Guide

Take your passion for gemstones to a whole new level


See Plans & Pricing

Skip to toolbar